"Percolation" Quotes from Famous Books
 ... passed my hand across the rock hoping to find some trace of humidity—of the slightest percolation. Alas! in vain. ...
— A Journey to the Centre of the Earth • Jules Verne
... in the interval any wear and tear, seem explicable only on the view of the bottom of the sea not rarely lying for ages in an unaltered condition. The remains which do become embedded, if in sand or gravel, will, when the beds are upraised, generally be dissolved by the percolation of rain water charged with carbonic acid. Some of the many kinds of animals which live on the beach between high and low water mark seem to be rarely preserved. For instance, the several species of the Chthamalinae (a sub-family of sessile cirripedes) coat the rocks all over the world in ...
— On the Origin of Species - 6th Edition • Charles Darwin
... draining of the molasses out of it: first scraping off the thin hard crust of the sugar that lies at the top, and would hinder the water of the clay from soaking through the sugar of the pan. The refining is made by this percolation. For 10 to 12 days time that the clayish liquor lies soaking down the pan the white water whitens the sugar as it passes through it; and the gross body of the clay itself grows hard on the top, and may be taken off at pleasure; when scraping off with ...
— A Voyage to New Holland • William Dampier
... in the percolation tests are composed of typical Portland cement mixed with sand, gravel, and broken stone of known composition and behavior, and of cement mixed with sand, gravel, and broken stone collected in the neighborhood of the Reclamation ...
— Transactions of the American Society of Civil Engineers, vol. LXX, Dec. 1910 • Herbert M. Wilson
... grown. According to our view, the beds have been formed by the wind having heaped up fine sand, composed of minute rounded particles of shells and corals, during which process branches and roots of trees, together with many land-shells, became enclosed. The whole then became consolidated by the percolation of calcareous matter; and the cylindrical cavities left by the decaying of the wood, were thus also filled up with a hard pseudo-stalactical stone. The weather is now wearing away the softer parts, and in consequence the hard casts of the roots and branches of ...
— The Voyage of the Beagle • Charles Darwin |
